For they run to suffer punishments, no matter how horrible, as if to a banquet; so that if you take that as a test either of the truth of doctrine or of their certitude of grace, you would easily conclude that in no other sect is to be found a faith so true or grace so certain.
According to Fries, the understanding is purely the faculty of proof; it is in itself void; immediate certitude is the only source of knowledge.
In a somewhat similar fashion, Lamennais (in the first stage of his speculations, represented by the Essai sur l'indiference en matiere religieuse, 1817-18 21) endeavoured to destroy all rational certitude in order to establish the principle of authority; and the same profound distrust of the power of the natural reason to-arrive at truth is exemplified (though the allegation has been denied by the author) in Cardinal Newman.
To what the remaining difference was due it is difficult to say with certitude; there are some who argue that the tendency of prices to fall is inherent, and that the constant whittling away of intermediaries' profits is sufficient explanation, while bi-metallists have maintained that the phenomenon is clearly to be traced to the action of the German government in demonetizing silver in 1872.
Le Livre des Sept preuves de la mission du Bdb (Paris, 1902); Le Livre de la certitude (1904); and Le Beyan arabe (1905); and there are other notable works by H.